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由图1可见,绕在开卷机1上的带材2,首先通过矫直辊3矫平后,再经测量辊4检测出前次剪切之后所喂入带材的长度及其喂入速度。当显示出的长度接近予定的剪切长度时,一个直接连接在测量辊4的控制器起动剪切机5的马达,以便在准
As can be seen from Fig. 1, the strip 2 wound on the uncoiler 1 is first leveled by the leveling roll 3 and then measured by the measuring roll 4 for the length of the strip fed and its feeding speed after the previous shearing. A controller connected directly to the measuring roller 4 activates the motor of the shears 5 when the displayed length approaches a predetermined cut length so as to be accurate